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HYS72V32301GR-8 Datasheet

  • HYS72V32301GR-8

  • SDRAM|32MX72|CMOS|DIMM|168PIN|PLASTIC

  • 19頁(yè)

  • ETC

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HYS 72Vx3xxGR-8
PC100 Registered SDRAM-Modules
3.3 V 168-pin Registered SDRAM Modules
256 MB, 512 MB & 1 GB Densities
鈥?168-pin JEDEC Standard, Registered 8 Byte
Dual-In-Line SDRAM Modules for Server
main memory applications using memory
frequencies up to 100MHz
鈥?One bank 32M
脳
72 and 64M
脳
72
organization, two bank 128M
脳
72
organization
鈥?Optimized for ECC applications with very low
input capacitances
鈥?Programmed Latencies:
CL
2
t
RCD
t
RP
鈥?Programmable CAS Latency, Burst Length,
and Wrap Sequence (Sequential &
Interleave)
鈥?Auto Refresh (CBR) and Self Refresh
鈥?All inputs and outputs are LVTTL compatible
鈥?Serial Presence Detect with E
2
PROM
鈥?Utilizes SDRAMs in TSOPII-54 packages
with registers and PLL.The two bank module
uses stacked TSOP54 packages.
鈥?Card Size: 133.35 mm
脳
43.18 mm with
Gold contact pads (JEDEC MO-161)
鈥?These Registered DIMM modules support
operation in 鈥渞egistered鈥?and 鈥渂uffered鈥?mode
2
2
鈥?Single + 3.3 V (
鹵
0.3 V) power supply
鈥?Performance:
-8
Operation mode
f
CK
t
CK
t
AC
Unit
MHz
ns
ns
registered
100
10
6
buffered
66
15
6
Clock Frequency (max.)
Clock Cycle Time (min.)
Clock Access Time (max.)
The HYS 72Vx3xxGR-8 family are industry standard 168-pin 8-byte Dual in-line Memory Modules
(DIMMs) which are organized as 32M
脳
72, 64M
脳
72 & 128M
脳
72 high speed memory arrays
designed with Synchronous DRAMs (SDRAMs) for ECC applications. All control and address
signals are registered on-DIMM and the design incorporates a PLL circuit for the Clock inputs. Use
of an on-board register reduces capacitive loading on the input signals but are delayed by one cycle
in arriving at the SDRAM devices. Decoupling capacitors are mounted on the PC board. The DIMMs
use a serial presence detects scheme implemented via a serial E
2
PROM using the 2-pin I
2
C
protocol. The first 128 bytes are utilized by the DIMM manufacturer and the second 128 bytes are
available to the end user. All Infineon 168-pin DIMMs provide a high performance, flexible 8-byte
interface in a 133.35 mm long footprint. The PCB layout is based on latest industry PC133/PC100
standard gerber files. Besides standard PC100 applications, this module family is intended for
applications where Registered DIMM modules are used in 鈥渂uffered mode鈥?at a 67 MHz memory
bus speed.
INFINEON Technologies
1
9.01

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